Internal storage is directly attached to the system. The system can manage a combination of internal and external storage and represents all the detected storage as MDisks.
If the MDisks are created from different tiers of storage, Easy Tier ® can be used to automatically manage the migration of highly used data to faster drives. The system automatically detects the drives that are attached to it. These drives are configured into RAID arrays and presented as MDisks. MDisks can be added to pools in the same ways as MDisks that are discovered from external storage systems are added. If the MDisks are created from different tiers of storage, Easy Tier can be used to automatically manage the migration of highly used data to faster drives.